BlackStar 1B46SDS STL - QD Sheave SPA "text": "The SPB4870 is used

"text": "The SPB4870 is used for general-purpose industrial drives

The Gates 510L050 PowerGrip Timing Belts is a synchronous timing belt with L-pitch profile

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BlackStar 1B46SDS STL - QD Sheave SPA "text": "The SPB4870 is usedThe BlackStar 1B46SDS STL is a 1 groove qd sheave for B section belts, manufactured from cast iron. Requires a QD Type SDS Bushing (sold separately) to mount to your shaft. Specifications Part Number 1B46SDS STL Product Type QD Sheave Number of Grooves 1 Belt Profile B Outside Diameter 4. 95" Material Cast Iron Approx. Weight 4. 400 lbs Bushing Required QD Type SDS Bushing Pitch Diameter 4. 6" Compatible Belts A, B, 4L, 5L Bushing Required This sheave